Product Data Sheet Show all documents

Sika ViscoFlow®-3550 H

HIGH RANGE WATER REDUCING/SUPERPLASTICISING CONCRETE ADMIXTURE WITH FAST ABSORPTION CHARACTERISTICS

Sika ViscoFlow®-3550 H is a liquid admixture for concrete based on unique polycarboxylate polymers technologies. Sika ViscoFlow®-3550 H is designed as a high range water reducer or superplasticiser. It is particularly suited for use in concretes that require low water/cement ratios and / or high water reductions. The product provides fast adsorption resulting in highly efficient dispersion and potential reduction in mixing time.
Sika ViscoFlow®-3550 H meets the requirements of BS EN 934-2 table.

  • High range water reductions resulting in higher strengths and densities
  • Improved mixing times
  • Improved cohesion properties
  • Improved early and ultimate strengths
  • Excellent placement characteristics
  • Improved rheology
  • Improved durability
  • Reduced segregation and bleeding
  • Reduced drying shrinkage
  • Reduced mix costs
Product Data Sheet Show all documents

Usage

  • Sika ViscoFlow®-3550 H is a unique product that is suitable for the production of ready mixed concrete
  • Ideally suited for use in SCC and flowing concretes
  • Suitability for use across broad range of consistence classes from S3 – SF3
  • High performance concrete
  • High rise/pumped concrete
  • Slip form concrete
  • Improved effectiveness in higher ambient temperatures
 

Advantages

  • High range water reductions resulting in higher strengths and densities
  • Improved mixing times
  • Improved cohesion properties
  • Improved early and ultimate strengths
  • Excellent placement characteristics
  • Improved rheology
  • Improved durability
  • Reduced segregation and bleeding
  • Reduced drying shrinkage
  • Reduced mix costs

Packaging

20 litre drum, 1000 litre IBC

Colour

Brown liquid

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

Conforms to the requirements of BS EN 934-2 Tables 3.1 & 3.2 DoP 71285296.

Certified by Factory Production Control Body 1029 provided with the CE mark.

Ceritified by Factory Production Control Body 0120 provided with the UKCA mark.
Product Information

Chemical Base

Modified polycarboxylate

Shelf Life

12 months from date of production if stored properly in undamaged containers.

Storage Conditions

Store in dry conditions at temperatures between +5°C and +25°C. Protect from direct sunlight and frost.

Density

1.12 kg/l (at +20°C)

pH-Value

4.3 +/- 1.0

Total Chloride Ion Content

<0.1% w/w (chloride free)
Technical Information

Specific Advice

Alkali Content: Na2O Equivalent Max 0.5%
Effect of Overdosing: Increased workability and segregation

Application

Application Information

Compatibility

Sika ViscoFlow®-3550 H may be combined with many other Sika products. Important: Always conduct trials before combining products in specific mixes and contact our Technical Service Department for information and advice about any specific combinations.

Dispensing

Sika ViscoFlow®-3550 H should be dispensed through suitable calibrated dosing equipment.

Sika ViscoFlow®-3550 H is added to the gauging water or added with it into the concrete mixer.
Consumption

Recommended Dosage

0.2 - 1.5% by weight of cement. Exact dose should be determined through trials and may fall outside this range.
Application steps

APPLICATION INSTRUCTIONS

Application Method / Tools

  • The standard rules of good concreting practice, concerning production and placing, are to be followed.
  • Laboratory trials shall be carried out before concreting on site, especially when using a new mix design or producing new concrete components.
  • Fresh concrete must be cured properly and curing applied as soon as possible.
     

Notes on Application / Limitations

  • When using Sika ViscoFlow®-3550 H a suitable mix design has to be taken into account and local material sources shall be trialled.
  • Sika ViscoFlow®-3550 H shall not be added to dry cement.
  • Excessive water addition or overdosing may cause bleeding or segregation.
  • Support from our Technical Service Department is recommended.

Frost:
If frozen and / or if precipitation has occurred, Sika ViscoFlow®-3550 H may be used after thawing slowly at room temperature followed by intensive remixing.

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